1427623 has 4 divisors (see below), whose sum is σ = 1451880. Its totient is φ = 1403368.

The previous prime is 1427617. The next prime is 1427627. The reversal of 1427623 is 3267241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3267241 = 257 ⋅12713.

It is a cyclic number.

It is not a de Polignac number, because 1427623 - 2¹⁷ = 1296551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12040 + ... + 12157.

It is an arithmetic number, because the mean of its divisors is an integer number (362970).

2^1427623 is an apocalyptic number.

1427623 is a deficient number, since it is larger than the sum of its proper divisors (24257).

1427623 is an equidigital number, since it uses as much as digits as its factorization.

1427623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24256.

The product of its digits is 2016, while the sum is 25.

The square root of 1427623 is about 1194.8317873241. The cubic root of 1427623 is about 112.5998586611.

The spelling of 1427623 in words is "one million, four hundred twenty-seven thousand, six hundred twenty-three".